Switch-throw-rod connection.



E. C. LARRY.

SWITCH THROW ROD CONNECTION.

APPLICATION FILED MAY 18. 1915.

Patented Nov. 2, 1915.

UNITED strains PATENT 7 OFFICE.

EDWIN 5G. ,LABRY, or ,EQGI-IESA-TE'R, Yon'K', .AssI'G-NQB 1 0 GENERAL RAILWAY SIGNAL COMPANY, or Grim-Es, ew YOR'K,AZCORCPORATIQ31\T:OE N-EW'YORK.

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Specification .of Letters Patent," Patnted N QZ, 1915.

Application filed May"18,1915. s-enarne. 28,865;

To all whom it may-concern Be it known that I, EnwrNpC. LARRY, a citizen of the United States, and a'resident of the city of Rochester, in the county-of Monroe and State of New York, have invented a new and useful Switch-Throw- Rod Connection, of which the following is a specification. f

This invention relates to a switch til-1'9? I constituting dust and dirtclearance chanrod connection and has for its objectfto provide an efficient and inexpensive connec tion of this class which is readily adjustable to accommodate any difference in range of movement of the rod operating lever or machine relatively to the required extent of movement'of-theswitch point, andto permit every necessary freedom of lateral movement of the throw rod in the connection cas ing to avoid sticking or binding of the rod under any condition of use, and also to *pro- I vide a throw-rod connection having few v and simple parts WlllCh 1n operationpractr cally clear themselves of dust, dirt or moisture.

Other objects and advantageswill appear as the description of the invention progresses, and the novel features of the inventionwill be particularly pointed out in the appended claims. 7

Reference is made to the accompanying drawings forming part of this specifica tion, and in which:

Figure 1 is a detail plan view of a short length of railway track and adjustable switch points thereat coupled to the switch throw-rod by this improved connection. Fig. 2, is an enlarged somewhat broken plan view, partly in horizontal section on the line aa, in Fig. 3, and Fig. 3, is a central transverse vertical sectiontaken on the line 6-5, in Fig. 2, and also shows the switch point tie-bar in dotted lines.

The numerals 1, 1, indicate short sections of rails of a railway track, and 2, 2, indicate the points of two switch rails rigidly connected by a lengthwise adjustable front rod 3, and suitable tie-bars, but one tie-bar 4, being shown and to which is fastened the improved throw-rod connection generally in dicated in Fig. 1 by the letter 'A, and which flange 6, provided with 'holes7, through which pass bolts 8, ;.rigi'dly fastening the casing to the I tie-bar 1, in manner shown in Fig. 1 of the "drawings. The main body portion of the casing 5, hasgeneral' cylindrical formfland its central interior part is provided witha series of inwardly pro ecting ribs 9, separated at the ends by spaces of' 'which there preferably are four and dirt a-ndmoisture from the inner central part {of the casing. The ribs 9, together 1 form an abutment against opposite faces of which the inner ends of two hollow and generally cylindrical nuts 12, 13, may stop,

These nuts are fitted at their outer end por tions upon a screwthread 14: formed on the end part of-the switch throw-rod "15, and lock nuts 16,16, on this rod provide'for securing the nuts 12, '13, against longitudina l movement after they are once properly adjusted on the rod to provide necessary movement clearance relatively to the abut ment an) accommodate-the switchra'ilsand the :lever or machine operating the switch. I The inner ends of the nuts 12, .13, are cored or bored so as to move freely over the rod' threads 14, and this core or bore extends out wardly for most of the-length of the nuts or up .to their outer internally threaded end portions which move on the throw-rod threads 14:, and thus the cylindrical or barrel-shaped nuts provide a dust and weather guard for the screwthreads of the throwrod. Fig. 3 more clearly shows that the two nuts 12, 13, normally rest directly upon the bottoms of the two respective casing chambers 17 18. at opposite sides of the rib abutment 9, through which the throw-rod 15, freely passes, and whereby the utmost freedom of lateral movement of the rod and its two nuts 12, 13, is permitted and also assures that when the rod and nuts are moved end- Wise to close or open the switch, the nuts more effectually force possible dust and dirt accumulations from the casing chamcasing opening 11, provides free and ample drainage for moisture entering the casing.

The nuts 12, 13, with their lock nuts 16, are a preferred means adjustable on the throwrod 15, for offering resistance at the abutment for properly limiting endwise movements of the rod in the connection casing.

Although I have particularly described the construction of one physical embodiment of my invention, and explained the operation and principle thereof; nevertheless, I desire to have it understood that the form selected is merely illustrative, but does not exhaust the possible physical embodiments of the idea of means underlying my invention.

WVhat I claim as new and desire to secure by Letters Patent of'the'United States, is:

1. A switch throw-rod connection comprising a casing, a throw-rod entering the casing, an abutment in the casing through which the rod freely passes, and two adjustable pressure resistance means on the rod one at each side of the abutment and having movement clearance relatively there to and normally resting on the bottoms of the casing chambers which contain them, said casing having a bottom dust and dirt and moisture clearance opening at the abutment.

2. A switch throw-rod connection comprising a casing, a screwthreaded throw-rod entering the casing, an abutment inthe casing through which the rod freely passes, and two nuts on the rod one at each side of the abutment and having movement clearance relatively thereto and normally resting on the bottoms of the casing chambers which contain them, said casing having a clearance channels one of which is extended outward for drainage through the bottom wall of the casing, and two adjustable pressure resisting means on the rod one at each side of the abutment and having movement clearance relatively thereto.

i. A switch throw-rod connection comprising a casing, a screwthreaded throw-rod entering the casing, an abutment in the casing through which the rod freely passes and having a plurality of longitudinal dust and dirt clearance channels one of which is extended outward for drainage through the bottom wall of the casing, and two nuts on the rod one at each side of the abutment and having movement clearance relatively thereto.

5. A switch throw-rod connection co1nprising a casing, a screwthreaded throw-rod entering the casing, an abutment in the casing through which the rod freely passes and having a plurality of longitudinal dust and dirt clearance channels one of which is extended outward for drainage through the bottom wall of the casing, and two nuts on the rod one at each side of the abutment and having movement clearance relatively thereto and normally resting on the bottom of the casing chambers which contain them.

EDWIN o. LARRY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

